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Automate Your Network

Configuration Templates

Explore the use of Jinja2 templates and data models to automate network configurations such as VLAN, VRF, OSPF, and port-channel setups. Understand how to apply various interface types and customize templates to streamline network management.

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Here are more examples of templates that can be refactored to fit or used directly in a network for configuration management coverage by function. The matching data model dictionaries will be posted for reference to make it easier to connect the two. However, focus on the templates at this point.

Below are examples of Jinja2 templates and playbooks to help you with your configurations.

VLAN

Here is an example for VLAN configuration:

VLAN_template
host_vars/DIST01.YML
vlan {{ global_campus_defaults.native_vlan }}
 name NativeVLAN
{%  if host_vlans is defined %}
{%      for host_vlan in host_vlans %}
vlan {{ host_vlan }}
 name {{ host_vlans[host_vlan].name }}
{%     endfor %} 
{%  endif %}
VLAN template and partial

Data model: group_vars/CAMPUS.yml

  global_campus_defaults:
    native_vlan: 99

Data model: host_vars/DIST01.yml

VRF

Here is an example for VRF configuration:

VRF_template
host_vars/DIST01.yml
{% if platform_defaults.type == 6000 or platform_defaults.type == 4000 %}
{%     for host_vrf in host_vrfs %}
{%         if host_vrf == "global" %}
{%         else %}
vrf definition {{ host_vrf }}
{%         endif %}
{%         if host_vrf == "global" %}
{%         else %}
 vnet tag {{ host_vrfs[host_vrf].tag }}
 address-family ipv4
 exit-address-family
{%         endif %}
{%         if host_vrfs[host_vrf].multicast is defined %}
ip multicast-routing vrf {{ host_vrf }}
{%         endif %}
{%     endfor %} 
{% endif %}
VRF template and partial

Data model: group_vars/CAMPUS-DIST.YML and CAMPUS-CORE.YML

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